tune2fs.c revision 44a2cca35e9292c39bcad38288fdf7a78d6f56af
1/* 2 * tune2fs.c - Change the file system parameters on an ext2 file system 3 * 4 * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr> 5 * Laboratoire MASI, Institut Blaise Pascal 6 * Universite Pierre et Marie Curie (Paris VI) 7 * 8 * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o. 9 * 10 * %Begin-Header% 11 * This file may be redistributed under the terms of the GNU Public 12 * License. 13 * %End-Header% 14 */ 15 16/* 17 * History: 18 * 93/06/01 - Creation 19 * 93/10/31 - Added the -c option to change the maximal mount counts 20 * 93/12/14 - Added -l flag to list contents of superblock 21 * M.J.E. Mol (marcel@duteca.et.tudelft.nl) 22 * F.W. ten Wolde (franky@duteca.et.tudelft.nl) 23 * 93/12/29 - Added the -e option to change errors behavior 24 * 94/02/27 - Ported to use the ext2fs library 25 * 94/03/06 - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de) 26 */ 27 28#define _XOPEN_SOURCE 600 /* for inclusion of strptime() */ 29#define _BSD_SOURCE /* for inclusion of strcasecmp() */ 30#include "config.h" 31#include <fcntl.h> 32#include <grp.h> 33#ifdef HAVE_GETOPT_H 34#include <getopt.h> 35#else 36extern char *optarg; 37extern int optind; 38#endif 39#include <pwd.h> 40#include <stdio.h> 41#ifdef HAVE_STDLIB_H 42#include <stdlib.h> 43#endif 44#include <string.h> 45#include <time.h> 46#include <unistd.h> 47#include <sys/types.h> 48#include <libgen.h> 49#include <limits.h> 50 51#include "ext2fs/ext2_fs.h" 52#include "ext2fs/ext2fs.h" 53#include "et/com_err.h" 54#include "uuid/uuid.h" 55#include "e2p/e2p.h" 56#include "jfs_user.h" 57#include "util.h" 58#include "blkid/blkid.h" 59#include "quota/mkquota.h" 60 61#include "../version.h" 62#include "nls-enable.h" 63 64#define QOPT_ENABLE (1) 65#define QOPT_DISABLE (-1) 66 67extern int ask_yn(const char *string, int def); 68 69const char *program_name = "tune2fs"; 70char *device_name; 71char *new_label, *new_last_mounted, *new_UUID; 72char *io_options; 73static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag; 74static int m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag; 75static int I_flag; 76static int clear_mmp; 77static time_t last_check_time; 78static int print_label; 79static int max_mount_count, mount_count, mount_flags; 80static unsigned long interval; 81static blk64_t reserved_blocks; 82static double reserved_ratio; 83static unsigned long resgid, resuid; 84static unsigned short errors; 85static int open_flag; 86static char *features_cmd; 87static char *mntopts_cmd; 88static int stride, stripe_width; 89static int stride_set, stripe_width_set; 90static char *extended_cmd; 91static unsigned long new_inode_size; 92static char *ext_mount_opts; 93static int usrquota, grpquota; 94 95int journal_size, journal_flags; 96char *journal_device; 97 98static struct list_head blk_move_list; 99 100struct blk_move { 101 struct list_head list; 102 blk64_t old_loc; 103 blk64_t new_loc; 104}; 105 106 107static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n"); 108 109#ifdef CONFIG_BUILD_FINDFS 110void do_findfs(int argc, char **argv); 111#endif 112 113static void usage(void) 114{ 115 fprintf(stderr, 116 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] " 117 "[-g group]\n" 118 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n" 119 "\t[-m reserved_blocks_percent] " 120 "[-o [^]mount_options[,...]] [-p mmp_update_interval]\n" 121 "\t[-r reserved_blocks_count] [-u user] [-C mount_count] " 122 "[-L volume_label]\n" 123 "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n" 124 "\t[-E extended-option[,...]] [-T last_check_time] " 125 "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name); 126 exit(1); 127} 128 129static __u32 ok_features[3] = { 130 /* Compat */ 131 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 132 EXT2_FEATURE_COMPAT_DIR_INDEX, 133 /* Incompat */ 134 EXT2_FEATURE_INCOMPAT_FILETYPE | 135 EXT3_FEATURE_INCOMPAT_EXTENTS | 136 EXT4_FEATURE_INCOMPAT_FLEX_BG | 137 EXT4_FEATURE_INCOMPAT_MMP, 138 /* R/O compat */ 139 EXT2_FEATURE_RO_COMPAT_LARGE_FILE | 140 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 141 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 142 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 143 EXT4_FEATURE_RO_COMPAT_GDT_CSUM | 144 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER | 145#ifdef CONFIG_QUOTA 146 EXT4_FEATURE_RO_COMPAT_QUOTA 147#endif 148}; 149 150static __u32 clear_ok_features[3] = { 151 /* Compat */ 152 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 153 EXT2_FEATURE_COMPAT_RESIZE_INODE | 154 EXT2_FEATURE_COMPAT_DIR_INDEX, 155 /* Incompat */ 156 EXT2_FEATURE_INCOMPAT_FILETYPE | 157 EXT4_FEATURE_INCOMPAT_FLEX_BG | 158 EXT4_FEATURE_INCOMPAT_MMP, 159 /* R/O compat */ 160 EXT2_FEATURE_RO_COMPAT_LARGE_FILE | 161 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 162 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 163 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 164 EXT4_FEATURE_RO_COMPAT_GDT_CSUM | 165#ifdef CONFIG_QUOTA 166 EXT4_FEATURE_RO_COMPAT_QUOTA 167#endif 168}; 169 170/* 171 * Remove an external journal from the filesystem 172 */ 173static int remove_journal_device(ext2_filsys fs) 174{ 175 char *journal_path; 176 ext2_filsys jfs; 177 char buf[1024]; 178 journal_superblock_t *jsb; 179 int i, nr_users; 180 errcode_t retval; 181 int commit_remove_journal = 0; 182 io_manager io_ptr; 183 184 if (f_flag) 185 commit_remove_journal = 1; /* force removal even if error */ 186 187 uuid_unparse(fs->super->s_journal_uuid, buf); 188 journal_path = blkid_get_devname(NULL, "UUID", buf); 189 190 if (!journal_path) { 191 journal_path = 192 ext2fs_find_block_device(fs->super->s_journal_dev); 193 if (!journal_path) 194 goto no_valid_journal; 195 } 196 197#ifdef CONFIG_TESTIO_DEBUG 198 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 199 io_ptr = test_io_manager; 200 test_io_backing_manager = unix_io_manager; 201 } else 202#endif 203 io_ptr = unix_io_manager; 204 retval = ext2fs_open(journal_path, EXT2_FLAG_RW| 205 EXT2_FLAG_JOURNAL_DEV_OK, 0, 206 fs->blocksize, io_ptr, &jfs); 207 if (retval) { 208 com_err(program_name, retval, 209 _("while trying to open external journal")); 210 goto no_valid_journal; 211 } 212 if (!(jfs->super->s_feature_incompat & 213 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) { 214 fprintf(stderr, _("%s is not a journal device.\n"), 215 journal_path); 216 goto no_valid_journal; 217 } 218 219 /* Get the journal superblock */ 220 if ((retval = io_channel_read_blk64(jfs->io, 1, -1024, buf))) { 221 com_err(program_name, retval, 222 _("while reading journal superblock")); 223 goto no_valid_journal; 224 } 225 226 jsb = (journal_superblock_t *) buf; 227 if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) || 228 (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) { 229 fputs(_("Journal superblock not found!\n"), stderr); 230 goto no_valid_journal; 231 } 232 233 /* Find the filesystem UUID */ 234 nr_users = ntohl(jsb->s_nr_users); 235 for (i = 0; i < nr_users; i++) { 236 if (memcmp(fs->super->s_uuid, &jsb->s_users[i * 16], 16) == 0) 237 break; 238 } 239 if (i >= nr_users) { 240 fputs(_("Filesystem's UUID not found on journal device.\n"), 241 stderr); 242 commit_remove_journal = 1; 243 goto no_valid_journal; 244 } 245 nr_users--; 246 for (i = 0; i < nr_users; i++) 247 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16); 248 jsb->s_nr_users = htonl(nr_users); 249 250 /* Write back the journal superblock */ 251 if ((retval = io_channel_write_blk64(jfs->io, 1, -1024, buf))) { 252 com_err(program_name, retval, 253 "while writing journal superblock."); 254 goto no_valid_journal; 255 } 256 257 commit_remove_journal = 1; 258 259no_valid_journal: 260 if (commit_remove_journal == 0) { 261 fputs(_("Cannot locate journal device. It was NOT removed\n" 262 "Use -f option to remove missing journal device.\n"), 263 stderr); 264 return 1; 265 } 266 fs->super->s_journal_dev = 0; 267 uuid_clear(fs->super->s_journal_uuid); 268 ext2fs_mark_super_dirty(fs); 269 fputs(_("Journal removed\n"), stdout); 270 free(journal_path); 271 272 return 0; 273} 274 275/* Helper function for remove_journal_inode */ 276static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 277 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 278 blk64_t ref_block EXT2FS_ATTR((unused)), 279 int ref_offset EXT2FS_ATTR((unused)), 280 void *private EXT2FS_ATTR((unused))) 281{ 282 blk64_t block; 283 int group; 284 285 block = *blocknr; 286 ext2fs_unmark_block_bitmap2(fs->block_map, block); 287 group = ext2fs_group_of_blk2(fs, block); 288 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1); 289 ext2fs_group_desc_csum_set(fs, group); 290 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs)); 291 return 0; 292} 293 294/* 295 * Remove the journal inode from the filesystem 296 */ 297static errcode_t remove_journal_inode(ext2_filsys fs) 298{ 299 struct ext2_inode inode; 300 errcode_t retval; 301 ino_t ino = fs->super->s_journal_inum; 302 303 retval = ext2fs_read_inode(fs, ino, &inode); 304 if (retval) { 305 com_err(program_name, retval, 306 _("while reading journal inode")); 307 return retval; 308 } 309 if (ino == EXT2_JOURNAL_INO) { 310 retval = ext2fs_read_bitmaps(fs); 311 if (retval) { 312 com_err(program_name, retval, 313 _("while reading bitmaps")); 314 return retval; 315 } 316 retval = ext2fs_block_iterate3(fs, ino, 317 BLOCK_FLAG_READ_ONLY, NULL, 318 release_blocks_proc, NULL); 319 if (retval) { 320 com_err(program_name, retval, 321 _("while clearing journal inode")); 322 return retval; 323 } 324 memset(&inode, 0, sizeof(inode)); 325 ext2fs_mark_bb_dirty(fs); 326 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 327 } else 328 inode.i_flags &= ~EXT2_IMMUTABLE_FL; 329 retval = ext2fs_write_inode(fs, ino, &inode); 330 if (retval) { 331 com_err(program_name, retval, 332 _("while writing journal inode")); 333 return retval; 334 } 335 fs->super->s_journal_inum = 0; 336 ext2fs_mark_super_dirty(fs); 337 338 return 0; 339} 340 341/* 342 * Update the default mount options 343 */ 344static int update_mntopts(ext2_filsys fs, char *mntopts) 345{ 346 struct ext2_super_block *sb = fs->super; 347 348 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) { 349 fprintf(stderr, _("Invalid mount option set: %s\n"), 350 mntopts); 351 return 1; 352 } 353 ext2fs_mark_super_dirty(fs); 354 355 return 0; 356} 357 358static void request_fsck_afterwards(ext2_filsys fs) 359{ 360 static int requested = 0; 361 362 if (requested++) 363 return; 364 fs->super->s_state &= ~EXT2_VALID_FS; 365 printf("\n%s\n", _(please_fsck)); 366 if (mount_flags & EXT2_MF_READONLY) 367 printf(_("(and reboot afterwards!)\n")); 368} 369 370/* 371 * Update the feature set as provided by the user. 372 */ 373static int update_feature_set(ext2_filsys fs, char *features) 374{ 375 struct ext2_super_block *sb = fs->super; 376 struct ext2_group_desc *gd; 377 __u32 old_features[3]; 378 int i, type_err; 379 unsigned int mask_err; 380 381#define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \ 382 ((&sb->s_feature_compat)[(type)] & (mask))) 383#define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \ 384 !((&sb->s_feature_compat)[(type)] & (mask))) 385#define FEATURE_CHANGED(type, mask) ((mask) & \ 386 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)])) 387 388 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat; 389 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat; 390 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat; 391 392 if (e2p_edit_feature2(features, &sb->s_feature_compat, 393 ok_features, clear_ok_features, 394 &type_err, &mask_err)) { 395 if (!mask_err) 396 fprintf(stderr, 397 _("Invalid filesystem option set: %s\n"), 398 features); 399 else if (type_err & E2P_FEATURE_NEGATE_FLAG) 400 fprintf(stderr, _("Clearing filesystem feature '%s' " 401 "not supported.\n"), 402 e2p_feature2string(type_err & 403 E2P_FEATURE_TYPE_MASK, 404 mask_err)); 405 else 406 fprintf(stderr, _("Setting filesystem feature '%s' " 407 "not supported.\n"), 408 e2p_feature2string(type_err, mask_err)); 409 return 1; 410 } 411 412 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 413 if ((mount_flags & EXT2_MF_MOUNTED) && 414 !(mount_flags & EXT2_MF_READONLY)) { 415 fputs(_("The has_journal feature may only be " 416 "cleared when the filesystem is\n" 417 "unmounted or mounted " 418 "read-only.\n"), stderr); 419 return 1; 420 } 421 if (sb->s_feature_incompat & 422 EXT3_FEATURE_INCOMPAT_RECOVER) { 423 fputs(_("The needs_recovery flag is set. " 424 "Please run e2fsck before clearing\n" 425 "the has_journal flag.\n"), stderr); 426 return 1; 427 } 428 if (sb->s_journal_inum) { 429 if (remove_journal_inode(fs)) 430 return 1; 431 } 432 if (sb->s_journal_dev) { 433 if (remove_journal_device(fs)) 434 return 1; 435 } 436 } 437 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { 438 int error; 439 440 if ((mount_flags & EXT2_MF_MOUNTED) || 441 (mount_flags & EXT2_MF_READONLY)) { 442 fputs(_("The multiple mount protection feature can't\n" 443 "be set if the filesystem is mounted or\n" 444 "read-only.\n"), stderr); 445 return 1; 446 } 447 448 error = ext2fs_mmp_init(fs); 449 if (error) { 450 fputs(_("\nError while enabling multiple mount " 451 "protection feature."), stderr); 452 return 1; 453 } 454 455 /* 456 * We want to update group desc with the new free blocks count 457 */ 458 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 459 460 printf(_("Multiple mount protection has been enabled " 461 "with update interval %ds.\n"), 462 sb->s_mmp_update_interval); 463 } 464 465 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) { 466 int error; 467 468 if (mount_flags & EXT2_MF_READONLY) { 469 fputs(_("The multiple mount protection feature cannot\n" 470 "be disabled if the filesystem is readonly.\n"), 471 stderr); 472 return 1; 473 } 474 475 error = ext2fs_read_bitmaps(fs); 476 if (error) { 477 fputs(_("Error while reading bitmaps\n"), stderr); 478 return 1; 479 } 480 481 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL); 482 if (error) { 483 struct mmp_struct *mmp_cmp = fs->mmp_cmp; 484 485 if (error == EXT2_ET_MMP_MAGIC_INVALID) 486 printf(_("Magic number in MMP block does not " 487 "match. expected: %x, actual: %x\n"), 488 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic); 489 else 490 com_err(program_name, error, 491 _("while reading MMP block.")); 492 goto mmp_error; 493 } 494 495 /* We need to force out the group descriptors as well */ 496 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 497 ext2fs_block_alloc_stats(fs, sb->s_mmp_block, -1); 498mmp_error: 499 sb->s_mmp_block = 0; 500 sb->s_mmp_update_interval = 0; 501 } 502 503 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 504 /* 505 * If adding a journal flag, let the create journal 506 * code below handle setting the flag and creating the 507 * journal. We supply a default size if necessary. 508 */ 509 if (!journal_size) 510 journal_size = -1; 511 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 512 } 513 514 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) { 515 if (!sb->s_def_hash_version) 516 sb->s_def_hash_version = EXT2_HASH_HALF_MD4; 517 if (uuid_is_null((unsigned char *) sb->s_hash_seed)) 518 uuid_generate((unsigned char *) sb->s_hash_seed); 519 } 520 521 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) { 522 if (ext2fs_check_desc(fs)) { 523 fputs(_("Clearing the flex_bg flag would " 524 "cause the the filesystem to be\n" 525 "inconsistent.\n"), stderr); 526 return 1; 527 } 528 } 529 530 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 531 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) { 532 if ((mount_flags & EXT2_MF_MOUNTED) && 533 !(mount_flags & EXT2_MF_READONLY)) { 534 fputs(_("The huge_file feature may only be " 535 "cleared when the filesystem is\n" 536 "unmounted or mounted " 537 "read-only.\n"), stderr); 538 return 1; 539 } 540 } 541 542 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, 543 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { 544 for (i = 0; i < fs->group_desc_count; i++) { 545 gd = ext2fs_group_desc(fs, fs->group_desc, i); 546 gd->bg_itable_unused = 0; 547 gd->bg_flags = EXT2_BG_INODE_ZEROED; 548 ext2fs_group_desc_csum_set(fs, i); 549 } 550 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 551 } 552 553 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 554 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { 555 for (i = 0; i < fs->group_desc_count; i++) { 556 gd = ext2fs_group_desc(fs, fs->group_desc, i); 557 if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) { 558 /* 559 * XXX what we really should do is zap 560 * uninitialized inode tables instead. 561 */ 562 request_fsck_afterwards(fs); 563 break; 564 } 565 gd->bg_itable_unused = 0; 566 gd->bg_flags = 0; 567 gd->bg_checksum = 0; 568 } 569 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 570 } 571 572 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT, 573 EXT4_FEATURE_RO_COMPAT_QUOTA)) { 574 /* 575 * Set the Q_flag here and handle the quota options in the code 576 * below. 577 */ 578 if (!Q_flag) { 579 Q_flag = 1; 580 /* Enable both user quota and group quota by default */ 581 usrquota = QOPT_ENABLE; 582 grpquota = QOPT_ENABLE; 583 } 584 sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA; 585 } 586 587 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 588 EXT4_FEATURE_RO_COMPAT_QUOTA)) { 589 /* 590 * Set the Q_flag here and handle the quota options in the code 591 * below. 592 */ 593 if (Q_flag) 594 fputs(_("\nWarning: '^quota' option overrides '-Q'" 595 "arguments.\n"), stderr); 596 Q_flag = 1; 597 /* Disable both user quota and group quota by default */ 598 usrquota = QOPT_DISABLE; 599 grpquota = QOPT_DISABLE; 600 } 601 602 if (sb->s_rev_level == EXT2_GOOD_OLD_REV && 603 (sb->s_feature_compat || sb->s_feature_ro_compat || 604 sb->s_feature_incompat)) 605 ext2fs_update_dynamic_rev(fs); 606 607 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT, 608 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) || 609 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 610 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) || 611 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT, 612 EXT2_FEATURE_INCOMPAT_FILETYPE) || 613 FEATURE_CHANGED(E2P_FEATURE_COMPAT, 614 EXT2_FEATURE_COMPAT_RESIZE_INODE) || 615 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT, 616 EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) 617 request_fsck_afterwards(fs); 618 619 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) || 620 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) || 621 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat)) 622 ext2fs_mark_super_dirty(fs); 623 624 return 0; 625} 626 627/* 628 * Add a journal to the filesystem. 629 */ 630static int add_journal(ext2_filsys fs) 631{ 632 unsigned long journal_blocks; 633 errcode_t retval; 634 ext2_filsys jfs; 635 io_manager io_ptr; 636 637 if (fs->super->s_feature_compat & 638 EXT3_FEATURE_COMPAT_HAS_JOURNAL) { 639 fputs(_("The filesystem already has a journal.\n"), stderr); 640 goto err; 641 } 642 if (journal_device) { 643 check_plausibility(journal_device); 644 check_mount(journal_device, 0, _("journal")); 645#ifdef CONFIG_TESTIO_DEBUG 646 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 647 io_ptr = test_io_manager; 648 test_io_backing_manager = unix_io_manager; 649 } else 650#endif 651 io_ptr = unix_io_manager; 652 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 653 EXT2_FLAG_JOURNAL_DEV_OK, 0, 654 fs->blocksize, io_ptr, &jfs); 655 if (retval) { 656 com_err(program_name, retval, 657 _("\n\twhile trying to open journal on %s\n"), 658 journal_device); 659 goto err; 660 } 661 printf(_("Creating journal on device %s: "), 662 journal_device); 663 fflush(stdout); 664 665 retval = ext2fs_add_journal_device(fs, jfs); 666 ext2fs_close(jfs); 667 if (retval) { 668 com_err(program_name, retval, 669 _("while adding filesystem to journal on %s"), 670 journal_device); 671 goto err; 672 } 673 fputs(_("done\n"), stdout); 674 } else if (journal_size) { 675 fputs(_("Creating journal inode: "), stdout); 676 fflush(stdout); 677 journal_blocks = figure_journal_size(journal_size, fs); 678 679 retval = ext2fs_add_journal_inode(fs, journal_blocks, 680 journal_flags); 681 if (retval) { 682 fprintf(stderr, "\n"); 683 com_err(program_name, retval, 684 _("\n\twhile trying to create journal file")); 685 return retval; 686 } else 687 fputs(_("done\n"), stdout); 688 /* 689 * If the filesystem wasn't mounted, we need to force 690 * the block group descriptors out. 691 */ 692 if ((mount_flags & EXT2_MF_MOUNTED) == 0) 693 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 694 } 695 print_check_message(fs->super->s_max_mnt_count, 696 fs->super->s_checkinterval); 697 return 0; 698 699err: 700 free(journal_device); 701 return 1; 702} 703 704void handle_quota_options(ext2_filsys fs) 705{ 706 quota_ctx_t qctx; 707 ext2_ino_t qf_ino; 708 709 if (!usrquota && !grpquota) 710 /* Nothing to do. */ 711 return; 712 713 quota_init_context(&qctx, fs, -1); 714 715 if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE) 716 quota_compute_usage(qctx); 717 718 if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) { 719 if ((qf_ino = quota_file_exists(fs, USRQUOTA, 720 QFMT_VFS_V1)) > 0) 721 quota_update_limits(qctx, qf_ino, USRQUOTA); 722 quota_write_inode(qctx, USRQUOTA); 723 } else if (usrquota == QOPT_DISABLE) { 724 quota_remove_inode(fs, USRQUOTA); 725 } 726 727 if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) { 728 if ((qf_ino = quota_file_exists(fs, GRPQUOTA, 729 QFMT_VFS_V1)) > 0) 730 quota_update_limits(qctx, qf_ino, GRPQUOTA); 731 quota_write_inode(qctx, GRPQUOTA); 732 } else if (grpquota == QOPT_DISABLE) { 733 quota_remove_inode(fs, GRPQUOTA); 734 } 735 736 quota_release_context(&qctx); 737 738 if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) { 739 fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA; 740 ext2fs_mark_super_dirty(fs); 741 } else if (!fs->super->s_usr_quota_inum && 742 !fs->super->s_grp_quota_inum) { 743 fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA; 744 ext2fs_mark_super_dirty(fs); 745 } 746 747 return; 748} 749 750void parse_quota_opts(const char *opts) 751{ 752 char *buf, *token, *next, *p; 753 int len; 754 755 len = strlen(opts); 756 buf = malloc(len+1); 757 if (!buf) { 758 fputs(_("Couldn't allocate memory to parse quota " 759 "options!\n"), stderr); 760 exit(1); 761 } 762 strcpy(buf, opts); 763 for (token = buf; token && *token; token = next) { 764 p = strchr(token, ','); 765 next = 0; 766 if (p) { 767 *p = 0; 768 next = p+1; 769 } 770 771 if (strcmp(token, "usrquota") == 0) { 772 usrquota = QOPT_ENABLE; 773 } else if (strcmp(token, "^usrquota") == 0) { 774 usrquota = QOPT_DISABLE; 775 } else if (strcmp(token, "grpquota") == 0) { 776 grpquota = QOPT_ENABLE; 777 } else if (strcmp(token, "^grpquota") == 0) { 778 grpquota = QOPT_DISABLE; 779 } else { 780 fputs(_("\nBad quota options specified.\n\n" 781 "Following valid quota options are available " 782 "(pass by separating with comma):\n" 783 "\t[^]usrquota\n" 784 "\t[^]grpquota\n" 785 "\n\n"), stderr); 786 free(buf); 787 exit(1); 788 } 789 } 790 free(buf); 791} 792 793 794 795static void parse_e2label_options(int argc, char ** argv) 796{ 797 if ((argc < 2) || (argc > 3)) { 798 fputs(_("Usage: e2label device [newlabel]\n"), stderr); 799 exit(1); 800 } 801 io_options = strchr(argv[1], '?'); 802 if (io_options) 803 *io_options++ = 0; 804 device_name = blkid_get_devname(NULL, argv[1], NULL); 805 if (!device_name) { 806 com_err("e2label", 0, _("Unable to resolve '%s'"), 807 argv[1]); 808 exit(1); 809 } 810 open_flag = EXT2_FLAG_JOURNAL_DEV_OK; 811 if (argc == 3) { 812 open_flag |= EXT2_FLAG_RW; 813 L_flag = 1; 814 new_label = argv[2]; 815 } else 816 print_label++; 817} 818 819static time_t parse_time(char *str) 820{ 821 struct tm ts; 822 823 if (strcmp(str, "now") == 0) { 824 return (time(0)); 825 } 826 memset(&ts, 0, sizeof(ts)); 827#ifdef HAVE_STRPTIME 828 strptime(str, "%Y%m%d%H%M%S", &ts); 829#else 830 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon, 831 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec); 832 ts.tm_year -= 1900; 833 ts.tm_mon -= 1; 834 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 || 835 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 || 836 ts.tm_min > 59 || ts.tm_sec > 61) 837 ts.tm_mday = 0; 838#endif 839 if (ts.tm_mday == 0) { 840 com_err(program_name, 0, 841 _("Couldn't parse date/time specifier: %s"), 842 str); 843 usage(); 844 } 845 ts.tm_isdst = -1; 846 return (mktime(&ts)); 847} 848 849static void parse_tune2fs_options(int argc, char **argv) 850{ 851 int c; 852 char *tmp; 853 struct group *gr; 854 struct passwd *pw; 855 856 open_flag = 0; 857 858 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE); 859 while ((c = getopt(argc, argv, "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:Q:T:U:")) != EOF) 860 switch (c) { 861 case 'c': 862 max_mount_count = strtol(optarg, &tmp, 0); 863 if (*tmp || max_mount_count > 16000) { 864 com_err(program_name, 0, 865 _("bad mounts count - %s"), 866 optarg); 867 usage(); 868 } 869 if (max_mount_count == 0) 870 max_mount_count = -1; 871 c_flag = 1; 872 open_flag = EXT2_FLAG_RW; 873 break; 874 case 'C': 875 mount_count = strtoul(optarg, &tmp, 0); 876 if (*tmp || mount_count > 16000) { 877 com_err(program_name, 0, 878 _("bad mounts count - %s"), 879 optarg); 880 usage(); 881 } 882 C_flag = 1; 883 open_flag = EXT2_FLAG_RW; 884 break; 885 case 'e': 886 if (strcmp(optarg, "continue") == 0) 887 errors = EXT2_ERRORS_CONTINUE; 888 else if (strcmp(optarg, "remount-ro") == 0) 889 errors = EXT2_ERRORS_RO; 890 else if (strcmp(optarg, "panic") == 0) 891 errors = EXT2_ERRORS_PANIC; 892 else { 893 com_err(program_name, 0, 894 _("bad error behavior - %s"), 895 optarg); 896 usage(); 897 } 898 e_flag = 1; 899 open_flag = EXT2_FLAG_RW; 900 break; 901 case 'E': 902 extended_cmd = optarg; 903 open_flag |= EXT2_FLAG_RW; 904 break; 905 case 'f': /* Force */ 906 f_flag = 1; 907 break; 908 case 'g': 909 resgid = strtoul(optarg, &tmp, 0); 910 if (*tmp) { 911 gr = getgrnam(optarg); 912 if (gr == NULL) 913 tmp = optarg; 914 else { 915 resgid = gr->gr_gid; 916 *tmp = 0; 917 } 918 } 919 if (*tmp) { 920 com_err(program_name, 0, 921 _("bad gid/group name - %s"), 922 optarg); 923 usage(); 924 } 925 g_flag = 1; 926 open_flag = EXT2_FLAG_RW; 927 break; 928 case 'i': 929 interval = strtoul(optarg, &tmp, 0); 930 switch (*tmp) { 931 case 's': 932 tmp++; 933 break; 934 case '\0': 935 case 'd': 936 case 'D': /* days */ 937 interval *= 86400; 938 if (*tmp != '\0') 939 tmp++; 940 break; 941 case 'm': 942 case 'M': /* months! */ 943 interval *= 86400 * 30; 944 tmp++; 945 break; 946 case 'w': 947 case 'W': /* weeks */ 948 interval *= 86400 * 7; 949 tmp++; 950 break; 951 } 952 if (*tmp) { 953 com_err(program_name, 0, 954 _("bad interval - %s"), optarg); 955 usage(); 956 } 957 i_flag = 1; 958 open_flag = EXT2_FLAG_RW; 959 break; 960 case 'j': 961 if (!journal_size) 962 journal_size = -1; 963 open_flag = EXT2_FLAG_RW; 964 break; 965 case 'J': 966 parse_journal_opts(optarg); 967 open_flag = EXT2_FLAG_RW; 968 break; 969 case 'l': 970 l_flag = 1; 971 break; 972 case 'L': 973 new_label = optarg; 974 L_flag = 1; 975 open_flag |= EXT2_FLAG_RW | 976 EXT2_FLAG_JOURNAL_DEV_OK; 977 break; 978 case 'm': 979 reserved_ratio = strtod(optarg, &tmp); 980 if (*tmp || reserved_ratio > 50 || 981 reserved_ratio < 0) { 982 com_err(program_name, 0, 983 _("bad reserved block ratio - %s"), 984 optarg); 985 usage(); 986 } 987 m_flag = 1; 988 open_flag = EXT2_FLAG_RW; 989 break; 990 case 'M': 991 new_last_mounted = optarg; 992 M_flag = 1; 993 open_flag = EXT2_FLAG_RW; 994 break; 995 case 'o': 996 if (mntopts_cmd) { 997 com_err(program_name, 0, 998 _("-o may only be specified once")); 999 usage(); 1000 } 1001 mntopts_cmd = optarg; 1002 open_flag = EXT2_FLAG_RW; 1003 break; 1004 case 'O': 1005 if (features_cmd) { 1006 com_err(program_name, 0, 1007 _("-O may only be specified once")); 1008 usage(); 1009 } 1010 features_cmd = optarg; 1011 open_flag = EXT2_FLAG_RW; 1012 break; 1013 case 'Q': 1014 Q_flag = 1; 1015 parse_quota_opts(optarg); 1016 open_flag = EXT2_FLAG_RW; 1017 break; 1018 case 'r': 1019 reserved_blocks = strtoul(optarg, &tmp, 0); 1020 if (*tmp) { 1021 com_err(program_name, 0, 1022 _("bad reserved blocks count - %s"), 1023 optarg); 1024 usage(); 1025 } 1026 r_flag = 1; 1027 open_flag = EXT2_FLAG_RW; 1028 break; 1029 case 's': /* Deprecated */ 1030 s_flag = atoi(optarg); 1031 open_flag = EXT2_FLAG_RW; 1032 break; 1033 case 'T': 1034 T_flag = 1; 1035 last_check_time = parse_time(optarg); 1036 open_flag = EXT2_FLAG_RW; 1037 break; 1038 case 'u': 1039 resuid = strtoul(optarg, &tmp, 0); 1040 if (*tmp) { 1041 pw = getpwnam(optarg); 1042 if (pw == NULL) 1043 tmp = optarg; 1044 else { 1045 resuid = pw->pw_uid; 1046 *tmp = 0; 1047 } 1048 } 1049 if (*tmp) { 1050 com_err(program_name, 0, 1051 _("bad uid/user name - %s"), 1052 optarg); 1053 usage(); 1054 } 1055 u_flag = 1; 1056 open_flag = EXT2_FLAG_RW; 1057 break; 1058 case 'U': 1059 new_UUID = optarg; 1060 U_flag = 1; 1061 open_flag = EXT2_FLAG_RW | 1062 EXT2_FLAG_JOURNAL_DEV_OK; 1063 break; 1064 case 'I': 1065 new_inode_size = strtoul(optarg, &tmp, 0); 1066 if (*tmp) { 1067 com_err(program_name, 0, 1068 _("bad inode size - %s"), 1069 optarg); 1070 usage(); 1071 } 1072 if (!((new_inode_size & 1073 (new_inode_size - 1)) == 0)) { 1074 com_err(program_name, 0, 1075 _("Inode size must be a " 1076 "power of two- %s"), 1077 optarg); 1078 usage(); 1079 } 1080 open_flag = EXT2_FLAG_RW; 1081 I_flag = 1; 1082 break; 1083 default: 1084 usage(); 1085 } 1086 if (optind < argc - 1 || optind == argc) 1087 usage(); 1088 if (!open_flag && !l_flag) 1089 usage(); 1090 io_options = strchr(argv[optind], '?'); 1091 if (io_options) 1092 *io_options++ = 0; 1093 device_name = blkid_get_devname(NULL, argv[optind], NULL); 1094 if (!device_name) { 1095 com_err("tune2fs", 0, _("Unable to resolve '%s'"), 1096 argv[optind]); 1097 exit(1); 1098 } 1099} 1100 1101#ifdef CONFIG_BUILD_FINDFS 1102void do_findfs(int argc, char **argv) 1103{ 1104 char *dev; 1105 1106 if ((argc != 2) || 1107 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) { 1108 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n"); 1109 exit(2); 1110 } 1111 dev = blkid_get_devname(NULL, argv[1], NULL); 1112 if (!dev) { 1113 com_err("findfs", 0, _("Unable to resolve '%s'"), 1114 argv[1]); 1115 exit(1); 1116 } 1117 puts(dev); 1118 exit(0); 1119} 1120#endif 1121 1122static int parse_extended_opts(ext2_filsys fs, const char *opts) 1123{ 1124 char *buf, *token, *next, *p, *arg; 1125 int len, hash_alg; 1126 int r_usage = 0; 1127 1128 len = strlen(opts); 1129 buf = malloc(len+1); 1130 if (!buf) { 1131 fprintf(stderr, 1132 _("Couldn't allocate memory to parse options!\n")); 1133 return 1; 1134 } 1135 strcpy(buf, opts); 1136 for (token = buf; token && *token; token = next) { 1137 p = strchr(token, ','); 1138 next = 0; 1139 if (p) { 1140 *p = 0; 1141 next = p+1; 1142 } 1143 arg = strchr(token, '='); 1144 if (arg) { 1145 *arg = 0; 1146 arg++; 1147 } 1148 if (strcmp(token, "clear-mmp") == 0 || 1149 strcmp(token, "clear_mmp") == 0) { 1150 clear_mmp = 1; 1151 } else if (strcmp(token, "mmp_update_interval") == 0) { 1152 unsigned long interval; 1153 if (!arg) { 1154 r_usage++; 1155 continue; 1156 } 1157 interval = strtoul(arg, &p, 0); 1158 if (*p) { 1159 fprintf(stderr, 1160 _("Invalid mmp_update_interval: %s\n"), 1161 arg); 1162 r_usage++; 1163 continue; 1164 } 1165 if (interval == 0) { 1166 interval = EXT4_MMP_UPDATE_INTERVAL; 1167 } else if (interval > EXT4_MMP_MAX_UPDATE_INTERVAL) { 1168 fprintf(stderr, 1169 _("mmp_update_interval too big: %lu\n"), 1170 interval); 1171 r_usage++; 1172 continue; 1173 } 1174 printf(P_("Setting multiple mount protection update " 1175 "interval to %lu second\n", 1176 "Setting multiple mount protection update " 1177 "interval to %lu seconds\n", interval), 1178 interval); 1179 fs->super->s_mmp_update_interval = interval; 1180 ext2fs_mark_super_dirty(fs); 1181 } else if (!strcmp(token, "test_fs")) { 1182 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; 1183 printf("Setting test filesystem flag\n"); 1184 ext2fs_mark_super_dirty(fs); 1185 } else if (!strcmp(token, "^test_fs")) { 1186 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS; 1187 printf("Clearing test filesystem flag\n"); 1188 ext2fs_mark_super_dirty(fs); 1189 } else if (strcmp(token, "stride") == 0) { 1190 if (!arg) { 1191 r_usage++; 1192 continue; 1193 } 1194 stride = strtoul(arg, &p, 0); 1195 if (*p) { 1196 fprintf(stderr, 1197 _("Invalid RAID stride: %s\n"), 1198 arg); 1199 r_usage++; 1200 continue; 1201 } 1202 stride_set = 1; 1203 } else if (strcmp(token, "stripe-width") == 0 || 1204 strcmp(token, "stripe_width") == 0) { 1205 if (!arg) { 1206 r_usage++; 1207 continue; 1208 } 1209 stripe_width = strtoul(arg, &p, 0); 1210 if (*p) { 1211 fprintf(stderr, 1212 _("Invalid RAID stripe-width: %s\n"), 1213 arg); 1214 r_usage++; 1215 continue; 1216 } 1217 stripe_width_set = 1; 1218 } else if (strcmp(token, "hash_alg") == 0 || 1219 strcmp(token, "hash-alg") == 0) { 1220 if (!arg) { 1221 r_usage++; 1222 continue; 1223 } 1224 hash_alg = e2p_string2hash(arg); 1225 if (hash_alg < 0) { 1226 fprintf(stderr, 1227 _("Invalid hash algorithm: %s\n"), 1228 arg); 1229 r_usage++; 1230 continue; 1231 } 1232 fs->super->s_def_hash_version = hash_alg; 1233 printf(_("Setting default hash algorithm " 1234 "to %s (%d)\n"), 1235 arg, hash_alg); 1236 ext2fs_mark_super_dirty(fs); 1237 } else if (!strcmp(token, "mount_opts")) { 1238 if (!arg) { 1239 r_usage++; 1240 continue; 1241 } 1242 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) { 1243 fprintf(stderr, 1244 "Extended mount options too long\n"); 1245 continue; 1246 } 1247 ext_mount_opts = strdup(arg); 1248 } else 1249 r_usage++; 1250 } 1251 if (r_usage) { 1252 fprintf(stderr, _("\nBad options specified.\n\n" 1253 "Extended options are separated by commas, " 1254 "and may take an argument which\n" 1255 "\tis set off by an equals ('=') sign.\n\n" 1256 "Valid extended options are:\n" 1257 "\tclear_mmp\n" 1258 "\thash_alg=<hash algorithm>\n" 1259 "\tmount_opts=<extended default mount options>\n" 1260 "\tstride=<RAID per-disk chunk size in blocks>\n" 1261 "\tstripe_width=<RAID stride*data disks in blocks>\n" 1262 "\ttest_fs\n" 1263 "\t^test_fs\n")); 1264 free(buf); 1265 return 1; 1266 } 1267 free(buf); 1268 1269 return 0; 1270} 1271 1272/* 1273 * Fill in the block bitmap bmap with the information regarding the 1274 * blocks to be moved 1275 */ 1276static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp, 1277 ext2fs_block_bitmap bmap) 1278{ 1279 dgrp_t i; 1280 int retval; 1281 ext2_badblocks_list bb_list = 0; 1282 blk64_t j, needed_blocks = 0; 1283 blk64_t start_blk, end_blk; 1284 1285 retval = ext2fs_read_bb_inode(fs, &bb_list); 1286 if (retval) 1287 return retval; 1288 1289 for (i = 0; i < fs->group_desc_count; i++) { 1290 start_blk = ext2fs_inode_table_loc(fs, i) + 1291 fs->inode_blocks_per_group; 1292 1293 end_blk = ext2fs_inode_table_loc(fs, i) + 1294 new_ino_blks_per_grp; 1295 1296 for (j = start_blk; j < end_blk; j++) { 1297 if (ext2fs_test_block_bitmap2(fs->block_map, j)) { 1298 /* 1299 * IF the block is a bad block we fail 1300 */ 1301 if (ext2fs_badblocks_list_test(bb_list, j)) { 1302 ext2fs_badblocks_list_free(bb_list); 1303 return ENOSPC; 1304 } 1305 1306 ext2fs_mark_block_bitmap2(bmap, j); 1307 } else { 1308 /* 1309 * We are going to use this block for 1310 * inode table. So mark them used. 1311 */ 1312 ext2fs_mark_block_bitmap2(fs->block_map, j); 1313 } 1314 } 1315 needed_blocks += end_blk - start_blk; 1316 } 1317 1318 ext2fs_badblocks_list_free(bb_list); 1319 if (needed_blocks > ext2fs_free_blocks_count(fs->super)) 1320 return ENOSPC; 1321 1322 return 0; 1323} 1324 1325static int ext2fs_is_meta_block(ext2_filsys fs, blk_t blk) 1326{ 1327 dgrp_t group; 1328 group = ext2fs_group_of_blk(fs, blk); 1329 if (ext2fs_block_bitmap_loc(fs, group) == blk) 1330 return 1; 1331 if (ext2fs_inode_bitmap_loc(fs, group) == blk) 1332 return 1; 1333 return 0; 1334} 1335 1336static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk_t blk) 1337{ 1338 blk_t start_blk, end_blk; 1339 start_blk = fs->super->s_first_data_block + 1340 EXT2_BLOCKS_PER_GROUP(fs->super) * group; 1341 /* 1342 * We cannot get new block beyond end_blk for for the last block group 1343 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group 1344 */ 1345 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super); 1346 if (blk >= start_blk && blk <= end_blk) 1347 return 1; 1348 return 0; 1349} 1350 1351static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap) 1352{ 1353 1354 char *buf; 1355 dgrp_t group = 0; 1356 errcode_t retval; 1357 int meta_data = 0; 1358 blk64_t blk, new_blk, goal; 1359 struct blk_move *bmv; 1360 1361 retval = ext2fs_get_mem(fs->blocksize, &buf); 1362 if (retval) 1363 return retval; 1364 1365 for (new_blk = blk = fs->super->s_first_data_block; 1366 blk < ext2fs_blocks_count(fs->super); blk++) { 1367 if (!ext2fs_test_block_bitmap2(bmap, blk)) 1368 continue; 1369 1370 if (ext2fs_is_meta_block(fs, blk)) { 1371 /* 1372 * If the block is mapping a fs meta data block 1373 * like group desc/block bitmap/inode bitmap. We 1374 * should find a block in the same group and fix 1375 * the respective fs metadata pointers. Otherwise 1376 * fail 1377 */ 1378 group = ext2fs_group_of_blk(fs, blk); 1379 goal = ext2fs_group_first_block2(fs, group); 1380 meta_data = 1; 1381 1382 } else { 1383 goal = new_blk; 1384 } 1385 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk); 1386 if (retval) 1387 goto err_out; 1388 1389 /* new fs meta data block should be in the same group */ 1390 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) { 1391 retval = ENOSPC; 1392 goto err_out; 1393 } 1394 1395 /* Mark this block as allocated */ 1396 ext2fs_mark_block_bitmap2(fs->block_map, new_blk); 1397 1398 /* Add it to block move list */ 1399 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv); 1400 if (retval) 1401 goto err_out; 1402 1403 bmv->old_loc = blk; 1404 bmv->new_loc = new_blk; 1405 1406 list_add(&(bmv->list), &blk_move_list); 1407 1408 retval = io_channel_read_blk64(fs->io, blk, 1, buf); 1409 if (retval) 1410 goto err_out; 1411 1412 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf); 1413 if (retval) 1414 goto err_out; 1415 } 1416 1417err_out: 1418 ext2fs_free_mem(&buf); 1419 return retval; 1420} 1421 1422static blk64_t translate_block(blk64_t blk) 1423{ 1424 struct list_head *entry; 1425 struct blk_move *bmv; 1426 1427 list_for_each(entry, &blk_move_list) { 1428 bmv = list_entry(entry, struct blk_move, list); 1429 if (bmv->old_loc == blk) 1430 return bmv->new_loc; 1431 } 1432 1433 return 0; 1434} 1435 1436static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)), 1437 blk64_t *block_nr, 1438 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1439 blk64_t ref_block EXT2FS_ATTR((unused)), 1440 int ref_offset EXT2FS_ATTR((unused)), 1441 void *priv_data) 1442{ 1443 int ret = 0; 1444 blk64_t new_blk; 1445 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data; 1446 1447 if (!ext2fs_test_block_bitmap2(bmap, *block_nr)) 1448 return 0; 1449 new_blk = translate_block(*block_nr); 1450 if (new_blk) { 1451 *block_nr = new_blk; 1452 /* 1453 * This will force the ext2fs_write_inode in the iterator 1454 */ 1455 ret |= BLOCK_CHANGED; 1456 } 1457 1458 return ret; 1459} 1460 1461static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap) 1462{ 1463 errcode_t retval = 0; 1464 ext2_ino_t ino; 1465 blk64_t blk; 1466 char *block_buf = 0; 1467 struct ext2_inode inode; 1468 ext2_inode_scan scan = NULL; 1469 1470 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf); 1471 if (retval) 1472 return retval; 1473 1474 retval = ext2fs_open_inode_scan(fs, 0, &scan); 1475 if (retval) 1476 goto err_out; 1477 1478 while (1) { 1479 retval = ext2fs_get_next_inode(scan, &ino, &inode); 1480 if (retval) 1481 goto err_out; 1482 1483 if (!ino) 1484 break; 1485 1486 if (inode.i_links_count == 0) 1487 continue; /* inode not in use */ 1488 1489 /* FIXME!! 1490 * If we end up modifying the journal inode 1491 * the sb->s_jnl_blocks will differ. But a 1492 * subsequent e2fsck fixes that. 1493 * Do we need to fix this ?? 1494 */ 1495 1496 if (ext2fs_file_acl_block(fs, &inode) && 1497 ext2fs_test_block_bitmap2(bmap, 1498 ext2fs_file_acl_block(fs, &inode))) { 1499 blk = translate_block(ext2fs_file_acl_block(fs, 1500 &inode)); 1501 if (!blk) 1502 continue; 1503 1504 ext2fs_file_acl_block_set(fs, &inode, blk); 1505 1506 /* 1507 * Write the inode to disk so that inode table 1508 * resizing can work 1509 */ 1510 retval = ext2fs_write_inode(fs, ino, &inode); 1511 if (retval) 1512 goto err_out; 1513 } 1514 1515 if (!ext2fs_inode_has_valid_blocks2(fs, &inode)) 1516 continue; 1517 1518 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf, 1519 process_block, bmap); 1520 if (retval) 1521 goto err_out; 1522 1523 } 1524 1525err_out: 1526 ext2fs_free_mem(&block_buf); 1527 1528 return retval; 1529} 1530 1531/* 1532 * We need to scan for inode and block bitmaps that may need to be 1533 * moved. This can take place if the filesystem was formatted for 1534 * RAID arrays using the mke2fs's extended option "stride". 1535 */ 1536static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap) 1537{ 1538 dgrp_t i; 1539 blk_t blk, new_blk; 1540 1541 for (i = 0; i < fs->group_desc_count; i++) { 1542 blk = ext2fs_block_bitmap_loc(fs, i); 1543 if (ext2fs_test_block_bitmap2(bmap, blk)) { 1544 new_blk = translate_block(blk); 1545 if (!new_blk) 1546 continue; 1547 ext2fs_block_bitmap_loc_set(fs, i, new_blk); 1548 } 1549 1550 blk = ext2fs_inode_bitmap_loc(fs, i); 1551 if (ext2fs_test_block_bitmap2(bmap, blk)) { 1552 new_blk = translate_block(blk); 1553 if (!new_blk) 1554 continue; 1555 ext2fs_inode_bitmap_loc_set(fs, i, new_blk); 1556 } 1557 } 1558 return 0; 1559} 1560 1561static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size) 1562{ 1563 dgrp_t i; 1564 blk64_t blk; 1565 errcode_t retval; 1566 int new_ino_blks_per_grp; 1567 unsigned int j; 1568 char *old_itable = NULL, *new_itable = NULL; 1569 char *tmp_old_itable = NULL, *tmp_new_itable = NULL; 1570 unsigned long old_ino_size; 1571 int old_itable_size, new_itable_size; 1572 1573 old_itable_size = fs->inode_blocks_per_group * fs->blocksize; 1574 old_ino_size = EXT2_INODE_SIZE(fs->super); 1575 1576 new_ino_blks_per_grp = ext2fs_div_ceil( 1577 EXT2_INODES_PER_GROUP(fs->super) * 1578 new_ino_size, 1579 fs->blocksize); 1580 1581 new_itable_size = new_ino_blks_per_grp * fs->blocksize; 1582 1583 retval = ext2fs_get_mem(old_itable_size, &old_itable); 1584 if (retval) 1585 return retval; 1586 1587 retval = ext2fs_get_mem(new_itable_size, &new_itable); 1588 if (retval) 1589 goto err_out; 1590 1591 tmp_old_itable = old_itable; 1592 tmp_new_itable = new_itable; 1593 1594 for (i = 0; i < fs->group_desc_count; i++) { 1595 blk = ext2fs_inode_table_loc(fs, i); 1596 retval = io_channel_read_blk64(fs->io, blk, 1597 fs->inode_blocks_per_group, old_itable); 1598 if (retval) 1599 goto err_out; 1600 1601 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) { 1602 memcpy(new_itable, old_itable, old_ino_size); 1603 1604 memset(new_itable+old_ino_size, 0, 1605 new_ino_size - old_ino_size); 1606 1607 new_itable += new_ino_size; 1608 old_itable += old_ino_size; 1609 } 1610 1611 /* reset the pointer */ 1612 old_itable = tmp_old_itable; 1613 new_itable = tmp_new_itable; 1614 1615 retval = io_channel_write_blk64(fs->io, blk, 1616 new_ino_blks_per_grp, new_itable); 1617 if (retval) 1618 goto err_out; 1619 } 1620 1621 /* Update the meta data */ 1622 fs->inode_blocks_per_group = new_ino_blks_per_grp; 1623 fs->super->s_inode_size = new_ino_size; 1624 1625err_out: 1626 if (old_itable) 1627 ext2fs_free_mem(&old_itable); 1628 1629 if (new_itable) 1630 ext2fs_free_mem(&new_itable); 1631 1632 return retval; 1633} 1634 1635static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs) 1636{ 1637 blk64_t blk; 1638 ext2_ino_t ino; 1639 unsigned int group = 0; 1640 unsigned int count = 0; 1641 int total_free = 0; 1642 int group_free = 0; 1643 1644 /* 1645 * First calculate the block statistics 1646 */ 1647 for (blk = fs->super->s_first_data_block; 1648 blk < ext2fs_blocks_count(fs->super); blk++) { 1649 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) { 1650 group_free++; 1651 total_free++; 1652 } 1653 count++; 1654 if ((count == fs->super->s_blocks_per_group) || 1655 (blk == ext2fs_blocks_count(fs->super)-1)) { 1656 ext2fs_bg_free_blocks_count_set(fs, group++, 1657 group_free); 1658 count = 0; 1659 group_free = 0; 1660 } 1661 } 1662 total_free = EXT2FS_C2B(fs, total_free); 1663 ext2fs_free_blocks_count_set(fs->super, total_free); 1664 1665 /* 1666 * Next, calculate the inode statistics 1667 */ 1668 group_free = 0; 1669 total_free = 0; 1670 count = 0; 1671 group = 0; 1672 1673 /* Protect loop from wrap-around if s_inodes_count maxed */ 1674 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) { 1675 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) { 1676 group_free++; 1677 total_free++; 1678 } 1679 count++; 1680 if ((count == fs->super->s_inodes_per_group) || 1681 (ino == fs->super->s_inodes_count)) { 1682 ext2fs_bg_free_inodes_count_set(fs, group++, 1683 group_free); 1684 count = 0; 1685 group_free = 0; 1686 } 1687 } 1688 fs->super->s_free_inodes_count = total_free; 1689 ext2fs_mark_super_dirty(fs); 1690 return 0; 1691} 1692 1693#define list_for_each_safe(pos, pnext, head) \ 1694 for (pos = (head)->next, pnext = pos->next; pos != (head); \ 1695 pos = pnext, pnext = pos->next) 1696 1697static void free_blk_move_list(void) 1698{ 1699 struct list_head *entry, *tmp; 1700 struct blk_move *bmv; 1701 1702 list_for_each_safe(entry, tmp, &blk_move_list) { 1703 bmv = list_entry(entry, struct blk_move, list); 1704 list_del(entry); 1705 ext2fs_free_mem(&bmv); 1706 } 1707 return; 1708} 1709 1710static int resize_inode(ext2_filsys fs, unsigned long new_size) 1711{ 1712 errcode_t retval; 1713 int new_ino_blks_per_grp; 1714 ext2fs_block_bitmap bmap; 1715 1716 retval = ext2fs_read_inode_bitmap(fs); 1717 if (retval) { 1718 fputs(_("Failed to read inode bitmap\n"), stderr); 1719 return retval; 1720 } 1721 retval = ext2fs_read_block_bitmap(fs); 1722 if (retval) { 1723 fputs(_("Failed to read block bitmap\n"), stderr); 1724 return retval; 1725 } 1726 INIT_LIST_HEAD(&blk_move_list); 1727 1728 1729 new_ino_blks_per_grp = ext2fs_div_ceil( 1730 EXT2_INODES_PER_GROUP(fs->super)* 1731 new_size, 1732 fs->blocksize); 1733 1734 /* We may change the file system. 1735 * Mark the file system as invalid so that 1736 * the user is prompted to run fsck. 1737 */ 1738 fs->super->s_state &= ~EXT2_VALID_FS; 1739 1740 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"), 1741 &bmap); 1742 if (retval) { 1743 fputs(_("Failed to allocate block bitmap when " 1744 "increasing inode size\n"), stderr); 1745 return retval; 1746 } 1747 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap); 1748 if (retval) { 1749 fputs(_("Not enough space to increase inode size \n"), stderr); 1750 goto err_out; 1751 } 1752 retval = move_block(fs, bmap); 1753 if (retval) { 1754 fputs(_("Failed to relocate blocks during inode resize \n"), 1755 stderr); 1756 goto err_out; 1757 } 1758 retval = inode_scan_and_fix(fs, bmap); 1759 if (retval) 1760 goto err_out_undo; 1761 1762 retval = group_desc_scan_and_fix(fs, bmap); 1763 if (retval) 1764 goto err_out_undo; 1765 1766 retval = expand_inode_table(fs, new_size); 1767 if (retval) 1768 goto err_out_undo; 1769 1770 ext2fs_calculate_summary_stats(fs); 1771 1772 fs->super->s_state |= EXT2_VALID_FS; 1773 /* mark super block and block bitmap as dirty */ 1774 ext2fs_mark_super_dirty(fs); 1775 ext2fs_mark_bb_dirty(fs); 1776 1777err_out: 1778 free_blk_move_list(); 1779 ext2fs_free_block_bitmap(bmap); 1780 1781 return retval; 1782 1783err_out_undo: 1784 free_blk_move_list(); 1785 ext2fs_free_block_bitmap(bmap); 1786 fputs(_("Error in resizing the inode size.\n" 1787 "Run e2undo to undo the " 1788 "file system changes. \n"), stderr); 1789 1790 return retval; 1791} 1792 1793static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr) 1794{ 1795 errcode_t retval = 0; 1796 const char *tdb_dir; 1797 char *tdb_file; 1798 char *dev_name, *tmp_name; 1799 1800#if 0 /* FIXME!! */ 1801 /* 1802 * Configuration via a conf file would be 1803 * nice 1804 */ 1805 profile_get_string(profile, "scratch_files", 1806 "directory", 0, 0, 1807 &tdb_dir); 1808#endif 1809 tmp_name = strdup(name); 1810 if (!tmp_name) { 1811 alloc_fn_fail: 1812 com_err(program_name, ENOMEM, 1813 _("Couldn't allocate memory for tdb filename\n")); 1814 return ENOMEM; 1815 } 1816 dev_name = basename(tmp_name); 1817 1818 tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); 1819 if (!tdb_dir) 1820 tdb_dir = "/var/lib/e2fsprogs"; 1821 1822 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || 1823 access(tdb_dir, W_OK)) 1824 return 0; 1825 1826 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1); 1827 if (!tdb_file) 1828 goto alloc_fn_fail; 1829 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name); 1830 1831 if (!access(tdb_file, F_OK)) { 1832 if (unlink(tdb_file) < 0) { 1833 retval = errno; 1834 com_err(program_name, retval, 1835 _("while trying to delete %s"), 1836 tdb_file); 1837 free(tdb_file); 1838 return retval; 1839 } 1840 } 1841 1842 set_undo_io_backing_manager(*io_ptr); 1843 *io_ptr = undo_io_manager; 1844 set_undo_io_backup_file(tdb_file); 1845 printf(_("To undo the tune2fs operation please run " 1846 "the command\n e2undo %s %s\n\n"), 1847 tdb_file, name); 1848 free(tdb_file); 1849 free(tmp_name); 1850 return retval; 1851} 1852 1853int main(int argc, char **argv) 1854{ 1855 errcode_t retval; 1856 ext2_filsys fs; 1857 struct ext2_super_block *sb; 1858 io_manager io_ptr, io_ptr_orig = NULL; 1859 int rc = 0; 1860 1861#ifdef ENABLE_NLS 1862 setlocale(LC_MESSAGES, ""); 1863 setlocale(LC_CTYPE, ""); 1864 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 1865 textdomain(NLS_CAT_NAME); 1866 set_com_err_gettext(gettext); 1867#endif 1868 if (argc && *argv) 1869 program_name = *argv; 1870 add_error_table(&et_ext2_error_table); 1871 1872#ifdef CONFIG_BUILD_FINDFS 1873 if (strcmp(get_progname(argv[0]), "findfs") == 0) 1874 do_findfs(argc, argv); 1875#endif 1876 if (strcmp(get_progname(argv[0]), "e2label") == 0) 1877 parse_e2label_options(argc, argv); 1878 else 1879 parse_tune2fs_options(argc, argv); 1880 1881#ifdef CONFIG_TESTIO_DEBUG 1882 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) { 1883 io_ptr = test_io_manager; 1884 test_io_backing_manager = unix_io_manager; 1885 } else 1886#endif 1887 io_ptr = unix_io_manager; 1888 1889retry_open: 1890 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag) 1891 open_flag |= EXT2_FLAG_SKIP_MMP; 1892 1893 open_flag |= EXT2_FLAG_64BITS; 1894 1895 /* keep the filesystem struct around to dump MMP data */ 1896 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR; 1897 1898 retval = ext2fs_open2(device_name, io_options, open_flag, 1899 0, 0, io_ptr, &fs); 1900 if (retval) { 1901 com_err(program_name, retval, 1902 _("while trying to open %s"), 1903 device_name); 1904 if (retval == EXT2_ET_MMP_FSCK_ON || 1905 retval == EXT2_ET_MMP_UNKNOWN_SEQ) 1906 dump_mmp_msg(fs->mmp_buf, 1907 _("If you are sure the filesystem " 1908 "is not in use on any node, run:\n" 1909 "'tune2fs -f -E clear_mmp {device}'\n")); 1910 else if (retval == EXT2_ET_MMP_FAILED) 1911 dump_mmp_msg(fs->mmp_buf, NULL); 1912 else if (retval == EXT2_ET_MMP_MAGIC_INVALID) 1913 fprintf(stderr, 1914 _("MMP block magic is bad. Try to fix it by " 1915 "running:\n'e2fsck -f %s'\n"), device_name); 1916 else if (retval != EXT2_ET_MMP_FAILED) 1917 fprintf(stderr, 1918 _("Couldn't find valid filesystem superblock.\n")); 1919 1920 ext2fs_free(fs); 1921 exit(1); 1922 } 1923 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE; 1924 1925 if (I_flag && !io_ptr_orig) { 1926 /* 1927 * Check the inode size is right so we can issue an 1928 * error message and bail before setting up the tdb 1929 * file. 1930 */ 1931 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) { 1932 fprintf(stderr, _("The inode size is already %lu\n"), 1933 new_inode_size); 1934 rc = 1; 1935 goto closefs; 1936 } 1937 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) { 1938 fprintf(stderr, _("Shrinking the inode size is " 1939 "not supported\n")); 1940 rc = 1; 1941 goto closefs; 1942 } 1943 1944 /* 1945 * If inode resize is requested use the 1946 * Undo I/O manager 1947 */ 1948 io_ptr_orig = io_ptr; 1949 retval = tune2fs_setup_tdb(device_name, &io_ptr); 1950 if (retval) { 1951 rc = 1; 1952 goto closefs; 1953 } 1954 if (io_ptr != io_ptr_orig) { 1955 ext2fs_close(fs); 1956 goto retry_open; 1957 } 1958 } 1959 1960 sb = fs->super; 1961 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 1962 1963 if (print_label) { 1964 /* For e2label emulation */ 1965 printf("%.*s\n", (int) sizeof(sb->s_volume_name), 1966 sb->s_volume_name); 1967 remove_error_table(&et_ext2_error_table); 1968 goto closefs; 1969 } 1970 1971 retval = ext2fs_check_if_mounted(device_name, &mount_flags); 1972 if (retval) { 1973 com_err("ext2fs_check_if_mount", retval, 1974 _("while determining whether %s is mounted."), 1975 device_name); 1976 rc = 1; 1977 goto closefs; 1978 } 1979 /* Normally we only need to write out the superblock */ 1980 fs->flags |= EXT2_FLAG_SUPER_ONLY; 1981 1982 if (c_flag) { 1983 sb->s_max_mnt_count = max_mount_count; 1984 ext2fs_mark_super_dirty(fs); 1985 printf(_("Setting maximal mount count to %d\n"), 1986 max_mount_count); 1987 } 1988 if (C_flag) { 1989 sb->s_mnt_count = mount_count; 1990 ext2fs_mark_super_dirty(fs); 1991 printf(_("Setting current mount count to %d\n"), mount_count); 1992 } 1993 if (e_flag) { 1994 sb->s_errors = errors; 1995 ext2fs_mark_super_dirty(fs); 1996 printf(_("Setting error behavior to %d\n"), errors); 1997 } 1998 if (g_flag) { 1999 sb->s_def_resgid = resgid; 2000 ext2fs_mark_super_dirty(fs); 2001 printf(_("Setting reserved blocks gid to %lu\n"), resgid); 2002 } 2003 if (i_flag) { 2004 if (interval >= (1ULL << 32)) { 2005 com_err(program_name, 0, 2006 _("interval between checks is too big (%lu)"), 2007 interval); 2008 rc = 1; 2009 goto closefs; 2010 } 2011 sb->s_checkinterval = interval; 2012 ext2fs_mark_super_dirty(fs); 2013 printf(_("Setting interval between checks to %lu seconds\n"), 2014 interval); 2015 } 2016 if (m_flag) { 2017 ext2fs_r_blocks_count_set(sb, reserved_ratio * 2018 ext2fs_blocks_count(sb) / 100.0); 2019 ext2fs_mark_super_dirty(fs); 2020 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"), 2021 reserved_ratio, ext2fs_r_blocks_count(sb)); 2022 } 2023 if (r_flag) { 2024 if (reserved_blocks > ext2fs_blocks_count(sb)/2) { 2025 com_err(program_name, 0, 2026 _("reserved blocks count is too big (%llu)"), 2027 reserved_blocks); 2028 rc = 1; 2029 goto closefs; 2030 } 2031 ext2fs_r_blocks_count_set(sb, reserved_blocks); 2032 ext2fs_mark_super_dirty(fs); 2033 printf(_("Setting reserved blocks count to %llu\n"), 2034 reserved_blocks); 2035 } 2036 if (s_flag == 1) { 2037 if (sb->s_feature_ro_compat & 2038 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) 2039 fputs(_("\nThe filesystem already has sparse " 2040 "superblocks.\n"), stderr); 2041 else { 2042 sb->s_feature_ro_compat |= 2043 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 2044 sb->s_state &= ~EXT2_VALID_FS; 2045 ext2fs_mark_super_dirty(fs); 2046 printf(_("\nSparse superblock flag set. %s"), 2047 _(please_fsck)); 2048 } 2049 } 2050 if (s_flag == 0) { 2051 fputs(_("\nClearing the sparse superflag not supported.\n"), 2052 stderr); 2053 rc = 1; 2054 goto closefs; 2055 } 2056 if (T_flag) { 2057 sb->s_lastcheck = last_check_time; 2058 ext2fs_mark_super_dirty(fs); 2059 printf(_("Setting time filesystem last checked to %s\n"), 2060 ctime(&last_check_time)); 2061 } 2062 if (u_flag) { 2063 sb->s_def_resuid = resuid; 2064 ext2fs_mark_super_dirty(fs); 2065 printf(_("Setting reserved blocks uid to %lu\n"), resuid); 2066 } 2067 if (L_flag) { 2068 if (strlen(new_label) > sizeof(sb->s_volume_name)) 2069 fputs(_("Warning: label too long, truncating.\n"), 2070 stderr); 2071 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name)); 2072 strncpy(sb->s_volume_name, new_label, 2073 sizeof(sb->s_volume_name)); 2074 ext2fs_mark_super_dirty(fs); 2075 } 2076 if (M_flag) { 2077 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted)); 2078 strncpy(sb->s_last_mounted, new_last_mounted, 2079 sizeof(sb->s_last_mounted)); 2080 ext2fs_mark_super_dirty(fs); 2081 } 2082 if (mntopts_cmd) { 2083 rc = update_mntopts(fs, mntopts_cmd); 2084 if (rc) 2085 goto closefs; 2086 } 2087 if (features_cmd) { 2088 rc = update_feature_set(fs, features_cmd); 2089 if (rc) 2090 goto closefs; 2091 } 2092 if (extended_cmd) { 2093 rc = parse_extended_opts(fs, extended_cmd); 2094 if (rc) 2095 goto closefs; 2096 if (clear_mmp && !f_flag) { 2097 fputs(_("Error in using clear_mmp. " 2098 "It must be used with -f\n"), 2099 stderr); 2100 goto closefs; 2101 } 2102 } 2103 if (clear_mmp) { 2104 rc = ext2fs_mmp_clear(fs); 2105 goto closefs; 2106 } 2107 if (journal_size || journal_device) { 2108 rc = add_journal(fs); 2109 if (rc) 2110 goto closefs; 2111 } 2112 2113 if (Q_flag) { 2114 if (mount_flags & EXT2_MF_MOUNTED) { 2115 fputs(_("The quota feature may only be changed when " 2116 "the filesystem is unmounted.\n"), stderr); 2117 rc = 1; 2118 goto closefs; 2119 } 2120 handle_quota_options(fs); 2121 } 2122 2123 if (U_flag) { 2124 int set_csum = 0; 2125 dgrp_t i; 2126 2127 if (sb->s_feature_ro_compat & 2128 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) { 2129 /* 2130 * Determine if the block group checksums are 2131 * correct so we know whether or not to set 2132 * them later on. 2133 */ 2134 for (i = 0; i < fs->group_desc_count; i++) 2135 if (!ext2fs_group_desc_csum_verify(fs, i)) 2136 break; 2137 if (i >= fs->group_desc_count) 2138 set_csum = 1; 2139 } 2140 if ((strcasecmp(new_UUID, "null") == 0) || 2141 (strcasecmp(new_UUID, "clear") == 0)) { 2142 uuid_clear(sb->s_uuid); 2143 } else if (strcasecmp(new_UUID, "time") == 0) { 2144 uuid_generate_time(sb->s_uuid); 2145 } else if (strcasecmp(new_UUID, "random") == 0) { 2146 uuid_generate(sb->s_uuid); 2147 } else if (uuid_parse(new_UUID, sb->s_uuid)) { 2148 com_err(program_name, 0, _("Invalid UUID format\n")); 2149 rc = 1; 2150 goto closefs; 2151 } 2152 if (set_csum) { 2153 for (i = 0; i < fs->group_desc_count; i++) 2154 ext2fs_group_desc_csum_set(fs, i); 2155 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 2156 } 2157 ext2fs_mark_super_dirty(fs); 2158 } 2159 if (I_flag) { 2160 if (mount_flags & EXT2_MF_MOUNTED) { 2161 fputs(_("The inode size may only be " 2162 "changed when the filesystem is " 2163 "unmounted.\n"), stderr); 2164 rc = 1; 2165 goto closefs; 2166 } 2167 if (fs->super->s_feature_incompat & 2168 EXT4_FEATURE_INCOMPAT_FLEX_BG) { 2169 fputs(_("Changing the inode size not supported for " 2170 "filesystems with the flex_bg\n" 2171 "feature enabled.\n"), 2172 stderr); 2173 rc = 1; 2174 goto closefs; 2175 } 2176 /* 2177 * We want to update group descriptor also 2178 * with the new free inode count 2179 */ 2180 fs->flags &= ~EXT2_FLAG_SUPER_ONLY; 2181 if (resize_inode(fs, new_inode_size) == 0) { 2182 printf(_("Setting inode size %lu\n"), 2183 new_inode_size); 2184 } else { 2185 printf(_("Failed to change inode size\n")); 2186 rc = 1; 2187 goto closefs; 2188 } 2189 } 2190 2191 if (l_flag) 2192 list_super(sb); 2193 if (stride_set) { 2194 sb->s_raid_stride = stride; 2195 ext2fs_mark_super_dirty(fs); 2196 printf(_("Setting stride size to %d\n"), stride); 2197 } 2198 if (stripe_width_set) { 2199 sb->s_raid_stripe_width = stripe_width; 2200 ext2fs_mark_super_dirty(fs); 2201 printf(_("Setting stripe width to %d\n"), stripe_width); 2202 } 2203 if (ext_mount_opts) { 2204 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts, 2205 sizeof(fs->super->s_mount_opts)); 2206 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0; 2207 ext2fs_mark_super_dirty(fs); 2208 printf(_("Setting extended default mount options to '%s'\n"), 2209 ext_mount_opts); 2210 free(ext_mount_opts); 2211 } 2212 free(device_name); 2213 remove_error_table(&et_ext2_error_table); 2214 2215closefs: 2216 if (rc) { 2217 ext2fs_mmp_stop(fs); 2218 exit(1); 2219 } 2220 2221 return (ext2fs_close(fs) ? 1 : 0); 2222} 2223